SMF - OPO

$322 Find Cheap Flights from Sacramento to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sacramento to Porto departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Porto, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$750
United Airlines
Mon 12/7Thu 12/10
SMF - OPO • 2 stops
Cheapest one-way
$322
Air Canada
Mon 10/19
SMF - OPO • 2 stops
Top airlines
Cheapest • from $750 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sacramento and Porto. You'll need at least 2 connections.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sacramento to Porto (SMF-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sacramento to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sacramento to Porto

Mon, Dec 7 - Thu, Dec 10
United Airlines Logo
3:45 pm - 9:30 am
SMF
-
OPO
33h 45m
2 stops
United Airlines Logo
12:35 pm - 11:28 pm
OPO
-
SMF
18h 53m
2 stops
$750United Airlines
Mon, Dec 7 - Thu, Dec 10
United Airlines Logo
11:00 pm - 9:30 am
SMF
-
OPO
26h 30m
1 stop
United Airlines Logo
12:35 pm - 11:28 pm
OPO
-
SMF
18h 53m
2 stops
$751United Airlines
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
5:25 am - 9:30 am
SMF
-
OPO
20h 05m
2 stops
United Airlines Logo
12:35 pm - 9:05 pm
OPO
-
SMF
16h 30m
1 stop
$759United Airlines
Mon, Dec 7 - Thu, Dec 10
United Airlines Logo
11:00 pm - 9:30 am
SMF
-
OPO
26h 30m
1 stop
United Airlines Logo
12:35 pm - 9:05 pm
OPO
-
SMF
16h 30m
1 stop
$760United Airlines
Sun, Nov 1 - Sun, Nov 15
Multiple Airlines Logo
2:00 pm - 9:30 am
SMF
-
OPO
35h 30m
2 stops
Multiple Airlines Logo
6:00 am - 3:22 pm
OPO
-
SMF
17h 22m
2 stops
$795Multiple Airlines
Sun, Nov 1 - Sun, Nov 15
Multiple Airlines Logo
11:00 pm - 9:30 am
SMF
-
OPO
26h 30m
1 stop
Multiple Airlines Logo
6:00 am - 3:22 pm
OPO
-
SMF
17h 22m
2 stops
$797Multiple Airlines
Sun, Nov 1 - Sun, Nov 15
Delta Logo
6:00 am - 9:05 am
SMF
-
OPO
19h 05m
2 stops
Delta Logo
5:00 am - 8:23 pm
OPO
-
SMF
23h 23m
2 stops
$801Delta
Sun, Nov 1 - Sun, Nov 15
Multiple Airlines Logo
8:50 am - 10:25 pm
SMF
-
OPO
29h 35m
2 stops
Multiple Airlines Logo
7:20 pm - 10:35 pm
OPO
-
SMF
35h 15m
2 stops
$805Multiple Airlines
Sun, Nov 1 - Sun, Nov 15
United Airlines Logo
6:20 pm - 9:30 am
SMF
-
OPO
31h 10m
2 stops
United Airlines Logo
6:00 am - 9:31 am
OPO
-
SMF
35h 31m
2 stops
$806United Airlines
Sun, Nov 1 - Sun, Nov 15
United Airlines Logo
11:00 pm - 9:30 am
SMF
-
OPO
26h 30m
1 stop
United Airlines Logo
6:00 am - 9:31 am
OPO
-
SMF
35h 31m
2 stops
$807United Airlines
Booking Insights

KAYAK's insights & trends for Sacramento to Porto flights

Get data-powered insights and trends into flights from Sacramento to Porto to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sacramento to Porto?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sacramento to Porto departing in December.

What is the cheapest month to fly from Sacramento to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sacramento to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sacramento to Porto is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,695 and $1,002 respectively.

Good to know

Low seasonDecember
Cheapest flight$322
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Sacramento to Porto

When to book flights from Sacramento to Porto

Are your dates flexible? Find out the best times to travel from Sacramento to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sacramento to Porto

  • What is the cheapest flight from Sacramento to Porto?

    In the last 5 days, the lowest price for a flight from Sacramento to Porto was $322 for a one-way ticket and $750 for a round-trip.

  • Do I need a passport to fly between Sacramento and Porto?

    Yes, you’ll need a passport to travel to Porto from Sacramento.

  • Which aircraft models fly most regularly from Sacramento to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sacramento to Porto?

    Star Alliance is the only airline alliance operating flights between Sacramento and Porto.

  • How does KAYAK find such low prices on flights from Sacramento to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sacramento to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sacramento to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Sacramento is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sacramento to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Sacramento with another airline. Booking your flights between Sacramento and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sacramento to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Sacramento up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Sacramento to Porto

 
See real verified KAYAK customer reviews for airlines flying from Sacramento to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sacramento to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9830 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
Airline reviews

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

2.0 MediocreAnonymous, Jun 2026
LAX - NRT
Read more United Airlines reviews

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Service was professional and quick. Premium economy seat was comfortable given the class

It was perfect! United Airlines staff was extremely caring, super friendly and professional

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Over 2.5 hour maintenance delay on first morning flight with no acknowledgement, compensation or even gesture of good will. Aircraft had overnighted at airport so issue should have been addressed prior to boarding. Over 3.5 hours before first slow and deliberate beverage service.

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

I paid for a confirmed upgraded aisle seat and was moved to a center seat in the back of the plane at the last minute.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Flight was delayed but more than 90 minutes. This caused me to miss my available windows for pick-up by a friend. I had to pay $125 for an uber back home from the airport which was an added expense that I had not budgeted for my trip. Staff was friendly.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Everything you need to know for your flight from Sacramento to Porto

Information on your arrival and departure airports